Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Good afternoon and welcome to JustAnswer!!My name is ***** ***** I have worked for a Chrysler-Dodge-Jeep dealership for 19 years and I will do my best to help.
Do you see a red security light on in the dash? If so do you have another key to try? Is the check engine light on and if yes then post the codes here so I can see what's going on..
If the check engine light is on then there are codes in the PCM and in order to know what's going on I will need to know the codes... Can I get your VIN to see if you have programmed keys?
2007 Bright Silver Metallic Durango with a 4.7 engine.. You do have a programmed key but if it was security it would show a red LED light on in the dash. At this point I will need to you to read the codes and post them here.. You can try installing a new fresh battery to see if that helps but if not I will need to know what codes are setting to help you get it fixed..
If no codes then you will need to start with the basics and see if it has spark and fuel psi..
Yes there should be a code, but since there isn't lets see if it has fuel psi and spark and go from there..
Good morning, sorry for the delay!!
There is no programming needed when replacing the alternator.. Only modules need to be programmed when replaced and since it started and shut off when the battery was disconnected then the alternator may not be charging. If it has spark and fuel then it should start, and since it's not then your missing one or the other.. If you install a good battery will it start up?
Spray a couple small shots of starting fluid into the throttle body and then quickly before it evaporates, see if the engine will start and run for a few seconds. If it does the ignition ad spark are ok and it is most likely fuel problem, however if it still don't start with the starting fluid, then we can assume the problem is with the ignition because the starting fluid will have substituted for the fuel system.
Let me know which it does, start and run for a few seconds or still not start.
I assume you don't have any starting fluid, is that correct?
Other than that, you can purchase a fuel injector tester noid light and check for an injector pulse while cranking but I would have preferred trying the starting fluid test first.
How did you replace the alternator then if you are on an isolated beach?
ok, the next step is either tow it home or try the starting fluid test and/or the noid light.
let me ask you this though, when you first turn the key to run, before you turn the key to start, can you hear the fuel pump run for 2 seconds?
You said you checked the fuel pressure, but was that before or after this no start?
If it was after, than it appears the pcm isn't supplying the fuel injectors with a pulse, so check the pcm fuses.
If there is no pulse, I don't think it's going to boil down to a reprogram, most likely something blew like a fuse or in rare instances the pcm got fried, exactly why on these modern vehicles with the voltage regulator and/or alternator controlled by the pcm or even in some circumstances the pcm is the voltage regulator why removing the battery cable while the engine is running even to test the alternator or for an other reason is a bad idea, cause the voltage could spike and fry something, in this case it may have just fried the pcm.
Yes, I double-checked and this is what the repair manual says "Electronic Voltage Regulator (EVR) circuitry within the Powertrain Control Module (PCM)". I would call a tow truck.
No, anyone with a scan tool can do it because the new or used pcm will most likely have to be programmed to the vehicle once it's installed.
have you decided what is your next step yet?
Sorry I'm o late to reply, didn't get to sleep until 8am.
That covers about everything except for bad gas and that is why I wanted to try the starting fluid in order to rule that out or not.
So you got a noid light but forgot the starting fluid?
Ok, so the fact that it still would not start up even for a few seconds on starting fluid indicates something other than the fuel system. You may eventually be looking at a timing belt. 90 psi is kinda low.
The pcm supplies the fuel injector pulse, turns on the fuel pump and may even help create the spark, none of these are missing. I would lean toward the spark plugs are gas fouled now because of the time it didn't start but was still spraying gasoline. Remove all the spark plugs and either clean and dry them, I use starting fluid, or carb cleaner or if they need replaced, just replace them all and try it again. Being you are so far away from a parts store, just clean them and dry them off. If you have nothing else use whatever you got to get the gas off.